1. For the position time graph, a - slope means you are going backwards. A 0 slope means you are standing still. A + slope means you are moving forward. When you cross the x axis it means you are behind your original starting point. That did not occur in our lab because we did not have too.
2. For the velocity time graph, a - slope means you are slowing down but still moving. A 0 slope means your speed is the same as what it was before. A + slope means you are increasing in speed. When you cross the x axis it means you are going backwards. That did not occur in our lab because the motion sensor could not detect us while we were behind it.
2. For the velocity time graph, a - slope means you are slowing down but still moving. A 0 slope means your speed is the same as what it was before. A + slope means you are increasing in speed. When you cross the x axis it means you are going backwards. That did not occur in our lab because the motion sensor could not detect us while we were behind it.